Used on nimitz class cvn; emory s land class as; forestal class cv; mars class t-afs 1; ticonderoga class cg (47); arleigh burke class ddg; wichita class aor; fire pumps.
3a 1st end thread class 16 1st end thread quantity per inch slots; 4 on the outer periphery evenly spaced, width 0.500 in. depth 0.220 in., flanged end int thds 2.500-16unj-3b un 1st end thread series
Used on c-130 air refueling system. 2a 1st end thread class 4 2nd end bolt hole quantity 20 1st end thread quantity per inch thread locking insert anodize surface treated uns 1st end thread series
